Worked on the googleapis/google-cloud-php repository, focusing exclusively on backend development and exception handling in PHP. During this period, addressed a critical bug by removing the overridden __toString method from the ApiException class, which restored the original exception message and ensured accurate string representation of errors. This change improved the reliability and clarity of API error messages, reducing the risk of misleading logs and enhancing the developer experience for users of the PHP client. No new features were introduced, as all efforts were directed toward refining error handling and maintaining consistent, debuggable exception messages across the client library.